Alert archive / Pennsylvania / Excessive Heat Warnings in 2017
Excessive Heat Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this excessive heat warning at Jul 12, 2017, 9:37 AM EDT for 5 counties in Pennsylvania; 4 counties in New Jersey; New Castle County, Delaware. It took effect at Jul 13, 2017, 11:00 AM EDT. It was in force for 9 hr. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 12, 2017, 9:37 AM EDT (13:37 UTC)
- In effect from
- Jul 13, 2017, 11:00 AM EDT
- Expired
- Jul 13, 2017, 7:41 PM EDT
- In force
- 9 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 66 km from the middle of the area, began a volume at 13:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 13, 5:26 PM EDT | HAIL 0.25 | Allentown, NJ | |
| Jul 13, 6:26 PM EDT | TSTM WND GST 55 | Pottstown, PA | |
| Jul 13, 6:26 PM EDT | HAIL 0.75 | Pottstown, PA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 1.6 hours before the alert went out and 220 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 529 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1143 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
816 WWUS71 KPHI 121337 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 937 AM EDT Wed Jul 12 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-130145- /O.UPG.KPHI.EH.A.0001.170713T1500Z-170714T0000Z/ /O.NEW.KPHI.EH.W.0001.170713T1500Z-170714T0000Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 937 AM EDT Wed Jul 12 2017 ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... The National Weather Service in Mount Holly has issued an Excessive Heat Warning, which is in effect from 11 AM to 8 PM EDT Thursday. The Excessive Heat Watch is no longer in effect. * HEAT INDEX...Maximum values between 100 and 105 degrees on Thursday due to temperatures in the middle 90s and dew point readings in the lower 70s. * IMPACTS...The excessive heat will have a negative impact on individuals who work outdoors. Also, the elderly, young children and those with pre-existing health conditions will be at a greater risk to be affected by this heat. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun... and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ JRK
6 follow-up statements
338 WWUS71 KPHI 121910 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 310 PM EDT Wed Jul 12 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-130715- /O.CON.KPHI.EH.W.0001.170713T1500Z-170714T0000Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 310 PM EDT Wed Jul 12 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * HEAT INDEX...Maximum values between 100 and 105 degrees due to temperatures in the middle 90s and dewpoints in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...Heat-related illness may develop if outdoors for an extended period of time. Also, the elderly, young children and those with pre-existing health conditions will be at greater risk for heat stress. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun... and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ DEZ002-003-MDZ012-015-019-020-130715- /O.NEW.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Including the cities of Dover, Georgetown, Chestertown, Centreville, Easton, and Denton 310 PM EDT Wed Jul 12 2017 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... The National Weather Service in Mount Holly has issued a Heat Advisory, which is in effect from 11 AM to 8 PM EDT Thursday. * HEAT INDEX...Maximum values between 104 and 108 degrees due to temperatures in the middle to upper 90s and dewpoints in the lower to middle 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. && $$ MDZ008-NJZ009-010-012-013-016-020>023-027-PAZ060-101-103-105- 130715- /O.NEW.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Cecil-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-Ocean- Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks- Western Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Flemington, Somerville, New Brunswick, Freehold, Pennsville, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Reading, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 310 PM EDT Wed Jul 12 2017 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... The National Weather Service in Mount Holly has issued a Heat Advisory, which is in effect from 11 AM to 8 PM EDT Thursday. * HEAT INDEX...Maximum values between 99 and 103 degrees due to temperatures in the lower to middle 90s and dewpoints in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. && $$ JRK
484 WWUS71 KPHI 130245 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1045 PM EDT Wed Jul 12 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-131500- /O.CON.KPHI.EH.W.0001.170713T1500Z-170714T0000Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 1045 PM EDT Wed Jul 12 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * HEAT INDEX...Maximum values between 100 and 105 degrees due to temperatures in the middle 90s and dewpoints in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...Heat-related illness may develop if outdoors for an extended period of time. Also, the elderly, young children and those with pre-existing health conditions will be at greater risk for heat stress. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun... and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ DEZ002-003-MDZ012-015-019-020-131500- /O.CON.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Including the cities of Dover, Georgetown, Chestertown, Centreville, Easton, and Denton 1045 PM EDT Wed Jul 12 2017 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * HEAT INDEX...Maximum values between 104 and 108 degrees due to temperatures in the middle to upper 90s and dewpoints in the lower to middle 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. && $$ MDZ008-NJZ009-010-012-013-016-020>023-027-PAZ060-101-103-105- 131500- /O.CON.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Cecil-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-Ocean- Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks- Western Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Flemington, Somerville, New Brunswick, Freehold, Pennsville, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Reading, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 1045 PM EDT Wed Jul 12 2017 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY... * HEAT INDEX...Maximum values between 99 and 103 degrees due to temperatures in the lower to middle 90s and dewpoints in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon on Thursday. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check up on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. && $$
977 WWUS71 KPHI 130706 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 306 AM EDT Thu Jul 13 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-140000- /O.CON.KPHI.EH.W.0001.170713T1500Z-170714T0000Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 306 AM EDT Thu Jul 13 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... * HEAT INDEX...Maximum values between 99 and 104 degrees due to temperatures in the middle 90s and dew points in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon. * IMPACTS...Heat-related illness may develop if outdoors for an extended period of time. Also, the elderly, young children and those with pre-existing health conditions will be at greater risk for heat stress. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ DEZ002-003-MDZ012-015-019-020-140000- /O.CON.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Including the cities of Dover, Georgetown, Chestertown, Centreville, Easton, and Denton 306 AM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... * HEAT INDEX...Maximum values between 102 and 107 degrees due to temperatures in the middle to upper 90s and dew points in the lower to middle 70s. * TIMING...The highest heat index values will occur during the afternoon. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ MDZ008-NJZ009-010-012-013-016-020>023-027-PAZ060-101-103-105- 140000- /O.CON.KPHI.HT.Y.0002.170713T1500Z-170714T0000Z/ Cecil-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-Ocean- Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks- Western Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Flemington, Somerville, New Brunswick, Freehold, Pennsville, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Reading, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 306 AM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... * HEAT INDEX...Maximum values between 97 and 102 degrees due to temperatures in the lower to middle 90s and dew points in the upper 60s and lower 70s. * TIMING...The highest heat index values will occur during the afternoon. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$
776 WWUS71 KPHI 131557 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 1157 AM EDT Thu Jul 13 2017 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-140000- /O.CON.KPHI.EH.W.0001.000000T0000Z-170714T0000Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 1157 AM EDT Thu Jul 13 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX VALUES...Between 100 and 105 degrees due to temperatures in the middle 90s and dew points in the lower 70s. * TIMING...This afternoon. Heat indices may peak early this afternoon before thicker cloud cover moves in. * IMPACTS...Heat-related illness may develop if outdoors for an extended period of time. Also, the elderly, young children and those with pre-existing health conditions will be at greater risk for heat stress. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ DEZ002-003-MDZ012-015-019-020-140000- /O.CON.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline- Including the cities of Dover, Georgetown, Chestertown, Centreville, Easton, and Denton 1157 AM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX...Maximum values between 103 and 109 degrees due to temperatures in the middle to upper 90s and dew points in the middle 70s. * TIMING...This afternoon. Heat indices should start to drop late this afternoon after peak heating and when thicker cloud cover moves in. * IMPACTS...Heat-related illness may develop if outdoors for an extended period of time. Also, the elderly, young children and those with pre-existing health conditions will be at greater risk for heat stress. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ MDZ008-NJZ009-010-012-013-016-020>023-027-PAZ060-101-103-105- 140000- /O.CON.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Cecil-Hunterdon-Somerset-Middlesex-Western Monmouth-Salem-Ocean- Cumberland-Atlantic-Cape May-Southeastern Burlington-Berks- Western Chester-Western Montgomery-Upper Bucks- Including the cities of Elkton, Flemington, Somerville, New Brunswick, Freehold, Pennsville, Jackson, Millville, Hammonton, Cape May Court House, Wharton State Forest, Reading, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 1157 AM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX...Maximum values between 97 and 103 degrees due to temperatures in the lower to middle 90s and dew points in the lower 70s. * TIMING...This afternoon. Heat indices may peak early this afternoon before thicker cloud cover moves in. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$
106 WWUS71 KPHI 132227 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 627 PM EDT Thu Jul 13 2017 NJZ015-017>019-PAZ070-071-102-104-106-132330- /O.CAN.KPHI.EH.W.0001.000000T0000Z-170714T0000Z/ Mercer-Gloucester-Camden-Northwestern Burlington-Delaware- Philadelphia-Eastern Chester-Eastern Montgomery-Lower Bucks- Including the cities of Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 627 PM EDT Thu Jul 13 2017 ...EXCESSIVE HEAT WARNING IS CANCELLED... The National Weather Service in Mount Holly has cancelled the Excessive Heat Warning. Rain has cooled most of this area this evening. $$ MDZ012-015-NJZ009-010-012-013-020-027-PAZ060-101-103-105-132330- /O.CAN.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Kent MD-Queen Annes-Hunterdon-Somerset-Middlesex-Western Monmouth- Ocean-Southeastern Burlington-Berks-Western Chester- Western Montgomery-Upper Bucks- Including the cities of Chestertown, Centreville, Flemington, Somerville, New Brunswick, Freehold, Jackson, Wharton State Forest, Reading, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 627 PM EDT Thu Jul 13 2017 ...HEAT ADVISORY IS CANCELLED... The National Weather Service in Mount Holly has cancelled the Heat Advisory. Rain has cooled most of this area this evening. $$ DEZ001-140000- /O.CON.KPHI.EH.W.0001.000000T0000Z-170714T0000Z/ New Castle- Including the city of Wilmington 627 PM EDT Thu Jul 13 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX VALUES...In the upper 90s to near 100 degrees. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ DEZ002-003-MDZ019-020-140000- /O.CON.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Kent-Inland Sussex-Talbot-Caroline- Including the cities of Dover, Georgetown, Easton, and Denton 627 PM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX...Values of 100 to 105 degrees in a few spots this evening. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$ MDZ008-NJZ016-021>023-140000- /O.CON.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Cecil-Salem-Cumberland-Atlantic-Cape May- Including the cities of Elkton, Pennsville, Millville, Hammonton, and Cape May Court House 627 PM EDT Thu Jul 13 2017 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX...Values still near 100 degrees in a few spots this evening. * IMPACTS...The heat and humidity may cause heat stress during outdoor exertion or extended exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will create a situation in which heat illnesses are possible. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun...and check on relatives and neighbors. Take extra precautions...if you work or spend time outside. When possible...reschedule strenuous activities to the early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work...the occupational safety and health administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency...call 9 1 1. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes. && $$
596 WWUS71 KPHI 132341 NPWPHI URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 741 PM EDT Thu Jul 13 2017 DEZ001-140045- /O.CAN.KPHI.EH.W.0001.000000T0000Z-170714T0000Z/ New Castle- Including the city of Wilmington 741 PM EDT Thu Jul 13 2017 ...EXCESSIVE HEAT WARNING IS CANCELLED... The National Weather Service in Mount Holly has cancelled the Excessive Heat Warning. $$ DEZ002-003-MDZ008-019-020-NJZ016-021>023-140045- /O.CAN.KPHI.HT.Y.0002.000000T0000Z-170714T0000Z/ Kent-Inland Sussex-Cecil-Talbot-Caroline-Salem-Cumberland- Atlantic-Cape May- Including the cities of Dover, Georgetown, Elkton, Easton, Denton, Pennsville, Millville, Hammonton, and Cape May Court House 741 PM EDT Thu Jul 13 2017 ...HEAT ADVISORY IS CANCELLED... The National Weather Service in Mount Holly has cancelled the Heat Advisory. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 3:10 PM EDT | Heat Advisory | PHI | Berks, Bucks, Chester, Montgomery | 29 hr |
| Jul 12, 5:31 PM EDT | Special Weather Statement | PHI | Passaic | 29 min |
| Jul 12, 7:07 PM EDT | Special Weather Statement | PHI | Morris | 38 min |
Nearby
Excessive Heat Warnings in Pennsylvania, 2017Excessive Heat Warnings in New Jersey, 2017Excessive Heat Warnings in Delaware, 2017Every excessive heat warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.